United are preparing to meet Chelsea in the FA Cup semifinal today at Wembley.
When asked the secret to Rashford and Martial's success, Solskjaer said: "We work on it, we work on patterns, but they've been together at the club for so long now and there was a spell where they were challenging, more or less, for the same position, both of them maybe on the left-hand side.
"But now we have found a way of playing them together and you can see it's starting to click.
"They enjoy each other's company, they know each other's strengths, they know each other's weaknesses - if there are any - so I'm delighted with their performances.
"When we split up I do more with the strikers than with the defenders, that's true.
“I think I've got more expertise and input in that part of it, so whenever we do finishing I like to join in and watch them, and give them a few pointers and tips.
"Just before every game we look at the 'keepers, how do they normally act? What's their stance? When do they jump? How do they set their feet?
“Defenders: do they dive in? So we do a lot of work but it's the effort by the boys. And the calmness and composure is the main thing."